https://doi.org/10.1051/epjconf/201922301006
Phase transition dynamics in hot nuclei and N/Z influence
1
Institut de Physique Nucléaire, CNRS/IN2P3, Univ. Paris-Sud, Université Paris-Saclay,
Orsay,
France
2
Normandie Univ., ENSICAEN, UNICAEN, CNRS/IN2P3,
LPC Caen, Caen,
France
3
CSNSM, CNRS/IN2P3, Univ. Paris-Sud, Université Paris-Saclay,
Orsay,
France
* e-mail: borderie@ipno.in2p3.fr
Published online: 4 December 2019
An abnormal production of events with almost equal-sized fragments was theoretically proposed as a signature of spinodal instabilities responsible for nuclear multifragmentation in the Fermi energy domain. On the other hand finite size effects are predicted to strongly reduce this extra production. High statistics quasifusion hot nuclei produced in central collisions between Xe and Sn isotopes at 32 and 45 MeV per nucleon incident energies have been used to definitively establish, through the experimental measurement of charge correlations, the presence of spinodal instabilities. N/Z influence was also studied. The nature of the phase transition dynamics i.e. the fragment formation was the last missing piece of the puzzle concerning the liquidgas transition in nuclei.
© The Authors, published by EDP Sciences, 2019
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
